change key battery BUICK CENTURY 2004 Owner's Manual

Remote Keyless Entry System
Your keyless entry system operates on a radio
frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:
Check the distance. You may be too far from your
vehicle. You may need to stand closer during
rainy or snowy weather.
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
Check to determine if battery replacement is
necessary. See “Battery Replacement” under
Remote Keyless Entry System Operation on
page 2-5.
If you are still having trouble, see your dealer or a
qualied technician for service.
2-4

Security Feedback
The remote keyless entry transmitter can be
programmed so that when the LOCK or UNLOCK
button is pressed, the vehicle gives visual or audible
feedback conrmation. Each lock or unlock command
verication must be programmed individually. The
ignition must be OFF for this feature to work.
Programming the LOCK Command
One of four modes can be selected to conrm a
LOCK command.
Mode 1 (One Chime):No Verication
Mode 2 (Two Chimes):Horn Chirp
Mode 3 (Three Chimes):Headlamps Flash
Mode 4 (Four Chimes):Horn Chirp and
Headlamps Flash
The vehicle was originally programmed to Mode 3.
The mode may have been changed since then.
To determine the current lock mode mode, or to change
the lock mode, do the following:
1. Close all doors and turn the ignition key to RUN.
2. Press and hold the power door lock switch in
the LOCK position.3. While holding the power door lock switch in the
LOCK position, press and release the remote
keyless entry transmitter LOCK button.
A series of one to four chimes will sound,
corresponding to the current lock mode.
4. Press the remote keyless entry transmitter LOCK
button to advance to the next lock mode.
If cycled beyond Mode 4, the vehicle will
enter Mode 1.
5. To set a mode, release the power door LOCK
switch after the chime sequence of the desired
mode is heard.
Disconnecting the vehicle’s battery for up to a year will
not affect the programmed mode.
Programming the UNLOCK Command
One of four modes can be selected to conrm an
UNLOCK command.
Mode 1 (One Chime):No Verication
Mode 2 (Two Chimes):Horn Chirp
Mode 3 (Three Chimes):Headlamps Flash
Mode 4 (Four Chimes):Horn Chirp and
Headlamps Flash
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The vehicle was originally programmed to Mode 3.
The mode may have been changed since then.
To determine the current unlock mode mode, or to
change the unlock mode, do the following:
1. Close all doors and turn the ignition key to RUN.
2. Press and hold the power door lock switch in
the unlock position.
3. While holding the power door lock switch in the
unlock position, press and release the remote
keyless entry transmitter UNLOCK button.
A series of one to four chimes will sound,
corresponding to the current unlock mode.
4. Press the remote keyless entry transmitter UNLOCK
button to advance to the next unlock mode.
If cycled beyond Mode 4, the vehicle will
enter Mode 1.
5. To set a mode, release the power door unlock
switch after the chime sequence of the desired
mode is heard.
Disconnecting the vehicle’s battery for up to a year will
not affect the programmed mode.Delayed Locking
This feature can be turned on or off. It delays the
locking of the doors for ve seconds after the power
door LOCK position or the LOCK button on the remote
keyless entry transmitter is pressed and the last
door is closed.
If a door is opened before ve seconds, the delayed
lock is cancelled. When all doors are closed again,
delayed locking begins again.
Three chimes will sound to indicate that this feature is
on. The chime will sound only when the key is not in the
ignition and a door is open.
To cancel delay locking, do any of the following:
Press the unlock portion of the power door
lock switch.
Press the UNLOCK button on the remote keyless
entry transmitter.
Press the LOCK portion of the power door lock
switch a second time.
Press the LOCK button on the remote keyless entry
transmitter a second time or.
Insert the ignition key into the ignition.
2-7

Battery Replacement
The battery in the remote keyless entry transmitter
should last about three years.
If the battery is weak the transmitter will not work within
its normal range. It is probably time to change the
battery if you have to be very close to the vehicle before
the transmitter works.
Notice:When replacing the battery, use care not to
touch any of the circuitry. Static from your body
transferred to these surfaces may damage the
transmitter.To replace the battery do the following:
1. Insert a at object like a thin coin into the slot on
the back of the transmitter and pry apart the front
and back.
2. Remove the old battery, but do not use a metal
object to do this. Make sure the new battery is a
type CR2032 or equivalent, and that the positive (+)
side of the battery is facing down.
3. Snap the front and back of the transmitter together.
4. Resynchronize and test the operation of the
transmitter with the vehicle.
Resynchronization
After the battery has been changed in the remote
keyless transmitter, it will need to be resynchronized. To
do this, press and hold both the LOCK and UNLOCK
buttons until you hear one horn chirp.
2-9

The vehicle was originally programmed to Mode 3.
The mode may have been changed since then.
To determine the current mode, or to change the mode,
do the following:
1. Turn the ignition key to RUN.
2. Close all of the doors.
3. Apply the brakes.
4. Press and hold the power door lock switch in the
lock position.
5. Move the shift lever out of and back into PARK (P)
while holding the door lock switch in the LOCK
position.
6. Release the door lock switch to set the
desired mode.
After initially moving the shift lever out of and back into
PARK (P), each additional shift cycle will advance
the programming from the current mode to the next
operating mode. If cycled beyond Mode 4, the vehicle
will enter operating Mode 1.
Disconnecting the vehicle’s battery for up to a year will
not affect the programmed mode.Lockout Protection
This feature helps to prevent a driver from locking the
keys inside of the vehicle by disabling the power
door locks when the following occurs:
A door is opened.
The key is left in the ignition.
A power door lock is pressed.
The lockout protection feature can be overridden by
holding the power door lock switch in the lock position
for more than three seconds while the key is in the
ignition and any door is open.
This feature cannot guarantee that you will never be
locked out of the vehicle. If the manual door lock is used
or if the key is left in the vehicle, but not in the ignition,
you could still be locked out of the vehicle. Always
remember to take the keys with you.
Leaving Your Vehicle
Before leaving the vehicle, take the keys, open the
door, and set the locks from inside. Then get out and
close the door. See “Delayed Locking” in this section for
more information.
2-12

Retained Accessory Power (RAP)
If the vehicle has Retained Accessory Power (RAP), the
power windows and audio system can continue to
operate for up to 10 minutes after the ignition key is
turned to OFF and before any of the doors are opened.
Starting Your Engine
Move the shift lever to PARK (P) or NEUTRAL (N). The
engine will not start in any other position – that is a
safety feature. To restart the vehicle when it is already
moving, use NEUTRAL (N) only.
Notice:Shifting into PARK (P) with the vehicle
moving could damage the transaxle. Shift into
PARK (P) only when your vehicle is stopped.
1. With your foot off the accelerator pedal, turn the
ignition key to START. When the engine starts,
let go of the key. The idle speed will go down as the
engine gets warm.Notice:Holding your key in START for longer than
15 seconds at a time will cause your battery to
be drained much sooner. And the excessive heat
can damage your starter motor. Wait about
15 seconds between each try to help avoid draining
your battery or damaging your starter.
2. If the engine will not start, or starts but then stops,
it could be ooded with too much gasoline. Try
pushing the accelerator pedal all the way to the oor
and holding it there as the key is held in START
for not more than 15 seconds at a time. This clears
the extra gasoline from the engine
Notice:Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way the
engine operates. Before adding electrical equipment,
check with your dealer. If you do not, your engine
might not perform properly.
2-20

Delayed Headlamps
Delayed headlamp illumination provides a period of
exterior lighting as you leave the vehicle’s area.
The feature is activated when the vehicle’s ignition is
turned off and the headlamps are on due to the
automatic headlamp control feature described previously
in this section. The headlamps will remain on until the
exterior lamps control is moved from OFF to the parking
lamp position or until a 90 second lighting period has
ended.
If the ignition is turned off while the exterior lamps
control is in the parking lamp or headlamp position, the
delayed headlamp illumination cycle will not occur.
This feature can be turned on or off by doing the
following:
1. Turn the ignition key to RUN.
2. Close all the doors.
3. Press and hold the LOCK position on the power
door lock switch. While holding the LOCK position
on the door lock switch, cycle the exterior lamps
control on and off two times.4. Release the power door LOCK switch. These steps
must be carried out in a time period of less than
10 seconds, followed by a delay period of no more
than 10 seconds.
5. Then, press and hold the unlock position on the
power door switch. While holding the unlock
position, turn the exterior lamps control on and off
two times. Release the unlock position on the power
door switch. These operations must be carried
out in a time period of less than 10 seconds.
After releasing the unlock position on the power door
switch, a single chime will be heard if the delayed
headlamp illumination function has been turned off.
Two chimes will be heard if the feature has been turned
on. Disconnecting the vehicle’s battery for up to a
year will not change the programmed operation for this
feature.
3-14